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设计并研制了2～15GHz多频段,带宽为100MHz的四发四收多输入多输出宽带无线信道测量系统,用于提取无线多输入多输出(MIMO)信道特性。介绍了室内环境在3.5GHz频率上进行的宽带信道测量实验。测量场景包括了室内直达径(LOS)和非直达(NLOS)的典型情况,同时也考虑了不同天线间距和人员移动的影响。根据测量结果分析了信道特性并提取了信道参数。统计得出的信道参数可以用于建立离散时间信道模型,应用于仿真与验证宽带MIMO通信系统。
Designed and developed a 2 ~ 15GHz multi-band, bandwidth of 100MHz quadruple-receiver multi-input and multi-output broadband wireless channel measurement system for extracting wireless multiple input multiple output (MIMO) channel characteristics. Introduced the indoor environment in the 3.5GHz frequency broadband channel measurement experiments. The measurement scenario includes a typical case of LOS and NLOS, taking into account the effects of different antenna spacings and movement of people. According to the measurement results, the channel characteristics are analyzed and the channel parameters are extracted. The statistics of the channel parameters can be used to establish discrete-time channel model, used in simulation and verification of broadband MIMO communication system.